Home / 21,575,799.56-29,775,186.50-12,879,016.88

Finding the Fourth Proportional to 21,575,799.56, 29,775,186.50 and 12,879,016.88

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Solution

The fourth proportional to 21,575,799.56, 29,775,186.50 and 12,879,016.88 is: 17,773,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575,799.56 : 29,775,186.50 = 12,879,016.88 : x
  2. Step 2: Convert to fraction form
    21,575,799.56/29,775,186.50 = 12,879,016.88/x
  3. Step 3: Cross multiply
    21,575,799.56x = 29,775,186.50 × 12,879,016.88
  4. Step 4: Simplify right side
    21,575,799.56x = 383,475,129,325,377.12
  5. Step 5: Solve for x
    x = 383,475,129,325,377.12/21,575,799.56
  6. Step 6: Final answer
    x = 17,773,391.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.